PT-2026-47777 · Red Hat · Red Hat Directory Server 11+7

Published 2026-06-09 · Updated 2026-06-09 · CVE-2026-11787

NVD

CVSS v3.1

5.0

Medium

Base vector

AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L

A flaw was found in 389 Directory Server. The ldap utf8prev() function reads bytes before the start of a buffer without bounds checking, causing a heap buffer over-read in string filter parsing that may influence internal filter processing behavior.

Fix

Buffer Over-read

Weakness Enumeration

CWE-126

Related Identifiers

CVE-2026-11787

Affected Products

Red Hat Directory Server 11

Red Hat Directory Server 12

Red Hat Directory Server 13

Red Hat Enterprise Linux 10

Red Hat Enterprise Linux 6

Red Hat Enterprise Linux 7

Red Hat Enterprise Linux 8

Red Hat Enterprise Linux 9

References · 4

• https://nvd.nist.gov/vuln/detail/CVE-2026-11787 · Security Note
• https://access.redhat.com/security/cve/CVE-2026-11787 · Note
• https://bugzilla.redhat.com/show_bug.cgi?id=2485425 · Note
• https://redhat.atlassian.net/browse/PSIRTSUPT-7600 · Note